Plate Tectonics

5. A theory that the Earths plates are driven in slow constant motion from convection currents in the mantle.
8. Idea the continents slowly moved over the Earth’s surface.
9. Process by which the plates separate from each other.
12. When new material is added onto the Ocean floor.
13. Only boundary that forms mountains.
14. Breaks in Earth’s crust.
15. A deep valley that is formed by divergent boundaries.
16. rock that is very hard but solid but also part of Earth’s system.
18. Mountains that are formed in the middle of Oceans from seams.
20. conditions of weather also helped Wegener learn more about Pangaea.

1. Process that works with the sea floor spreading as if they were a giant conveyor belt.
2. Remains left from organisms that have died out.
3. A land feature that is formed by convergent boundaries and was used to support Wegener’s idea of Pangaea.
4. German scientist who hypothesized that the Earth’s continents fit together like a puzzle.
6. Process by which the plates move past each other.
7. An idea that the continents were together at one point into a supercontinent.
10. Process by which the oceanic crust bends downwards.
11. Equipment that helps scientists map the ocean floor.
17. transfer of heat from a fluid.
19. Belongings of Earths 3 boundaries.